NAME

VERSION

DESCRIPTION

Mouse has an optional XS implementation, which is automatically built and used if available. According to benchmarks, this is about 2 times faster than Mouse::PurePerl.

INSTALL

The XS implementation are selected by default, but you can force it by passing the --xs option to Makefile.PL.

perl Makefile.PL --xs

If you do not want to build the XS implementation, you can pass the --pp option to Makefile.PL.

perl Makefile.PL --pp

Or if you use cpanm (>= 1.7), you can give --pp option to cpanm.

cpanm --pp Mouse

The MOUSE_PUREPERL (or PERL_ONLY) environment variable

It can be used to enable the use of Mouse::PurePerl in order to test and debug programs that use Mouse.

CAVEAT

There are some Mouse::XS specific features.

Mutationg references to the return values of getters

When you take a reference from Mouse getters, like $ref = \$obj->foo, the $ref refers \$obj->{foo}. That is, mutating $$ref also alters $obj->{foo}. The behavior may confuse you so you'd better avoid to take a reference directly from getters.